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Thermodynamics (C) question bank (Chemistry)

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Q1.

The work done during combustion of $9 \times 10^{- 2}$ $k g$ of ethane, $C_{2} H_{6} (g)$ at $300 K$ is (Given $R = 8.314 J K^{- 1} m o l^{- 1}$ , atomic mass $C = 12, H = 1$ )

(A)

6.236 k J

(B)

-6.236 k J

(C)

18.71 k J

(D)

-18.71 k J

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Q2.

Which of the following on combustion gives maximum energy?

(A)

Ethane

(B)

Propane

(C)

Methane

(D)

Butane

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